VW MK5 Jetta Electrical Systems SSP 873403

The new Jetta
Electrical System
Design and Function
Self-Study Program
Course Number 873403
Volkswagen of America, Inc.
Volkswagen Academy
Printed in U.S.A.
Printed 12/2004
Course Number 891403
©2004 Volkswagen of America, Inc.
All rights reserved. All information contained
in this manual is based on the latest
information available at the time of printing
and is subject to the copyright and other
intellectual property rights of Volkswagen of
America, Inc., its affiliated companies and its
licensors. All rights are reserved to make
changes at any time without notice. No part
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All requests for permission to copy and
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to Volkswagen of America, Inc.
Always check Technical Bulletins and the latest
electronic repair information for information
that may supersede any information included
in this booklet.
Trademarks: All brand names and product
names used in this manual are trade names,
service marks, trademarks, or registered
trademarks; and are the property of their
respective owners.
Table of Contents
Introduction ................................................................................1
Course Introduction, Electrical System Fuses and Relays,
Communication Network, Drivetrain CAN-bus Control
Modules, Convenience CAN-bus Control Modules,
Infotainment CAN-bus Control Modules, Instrument Cluster
and Diagnostic CAN-bus Control Modules
LIN Bus ......................................................................................14
LIN Bus
Power Supply ...........................................................................16
Electrical Box, Relay Carrier, Fuse Box, Data Bus On Board
Diagnostic Interface J533, Transport Mode, Vehicle Electrical
System Control Module J519, Exterior Light Control,
Convenience Lighting, Windshield Wiper System, Headlight
Washer System, Windshield Washer Quick Disconnect/Lock
System, Instrument Cluster Control Module J285, Anti-Theft
Immobilizer Control Module J362, Warning Lights in the
Instrument Cluster, Comfort System Central Control Module
J393
Convenience and Safety Systems ..........................................41
Personalization, Accessing Programming Menus, Radios,
Antennas, Multi-Function Steering Wheel, Headliner Printed
Circuits, Tamper-Proof Guard
New!
Important/Note!
This Self-Study Program covers the electrical system of the
new Jetta!
This Self-Study Program is not a Repair Manual. This
information will not be updated.
For testing, adjustment and repair procedures, always refer
to the latest electronic service information.
i
Introduction
Course Introduction
The new Jetta makes extensive use of
control modules and networking using
multiple Controller Area Network (CAN)
buses. Signals are transmitted digitally from
one control module to another on each
CAN-bus, eliminating the need for a
separate wire for each signal. The use of
CAN-bus communication for controls and
accessories reduces the wires needed in
the vehicle.
This Self-Study Program covers the new
Jetta’s electrical system. This program also
describes the new control modules, the
networking of various body electrical
systems, and the various CAN-bus
systems.
S873403_13
1
Introduction
Electrical System Fuses and Relays
Locations
The electrical system on the new Jetta is
entirely redesigned. Because of this, the
mounting location of fuse and relay centers
have changed.
The adjacent diagram shows the various
locations.
Fuse and relay center under
the hood on the driverside
Back-up fuse box under the
hood on the driverside
Fuse box behind the instrument
cluster
2
Introduction
Relay carrier below the instrument
cluster on the driverside, above
the on board power supply control
module
Relay carrier of on board power
supply control module, on left
under the instrument cluster
S873403_15
3
Introduction
Communication Network
Overview of Networked Control Modules
To allow communication between the
control modules without interference, they
are connected by several data bus systems.
The Data Bus On Board Diagnostic
Interface J533 (Gateway) allows
communication between the following data
buses:
• Drivetrain CAN-bus
•
Convenience CAN-bus
•
Infotainment CAN-bus
•
Instrument cluster CAN-bus
•
Diagnosis CAN-bus
In addition to the CAN-bus, some
electric components
communicate through the LIN
bus.
4
Key
D
E221
G85
G397
H8
J104
J136
Ignition/Starter Switch
Control Module in Steering Wheel
Steering Angle Sensor
Rain/Light Recognition Sensor
Alarm Horn
ABS Control Module
Memory Seat/Steering Column
Adjustment Control Module
J217 Transmission Control Module (TCM)
J220 Motronic Engine Control Module
J234 Airbag Control Module
J255 Climatronic Control Module
J285 Instrument Cluster Control Module
J334 Anti-Theft Engine Disable Control Module
J364 Auxiliary Heater Control Module
J386 Driver's Door Control Module
J387 Front Passenger's Door Control Module
J388 Left Rear Door Control Module
J389 Right Rear Door Control Module
J393 Comfort System Central Control Module
J400 Wiper Motor Control Module
J431 Headlamp Range Control Module
J446 Parking Aid Control Module
J500 Power Steering Control Module
J503 Radio/Navigation Display Control Module
J519 Vehicle Electrical System Control Module
J525 Digital Sound System Control Module
J527 Steering Column Electronic Systems
Control Module
J533 Data Bus On Board Diagnostic Interface
J587 Selector Lever Sensor System Control
Module*
J604 Auxiliary Air Heater Control Module
J743* Direct Shift Gearbox (DSG) Mechatronic
R
Radio
T16
16-Pin Connector
*On direct shift gearboxes only
Introduction
16-Pin
Connector
T16
DSG
Mechatronics
J743
Engine Control
Module J220
Headlamp
Range
CM J431
Transmission
CM J217
ABS CM
J104
Selector Lever
CM J587
Power Steering
CM J500
Airbag CM
J234
Steering Angle
Sensor G85
Steering Column
Electronic Systems
CM J527
Steering
Wheel
CM E221
Data Bus On Board
Diagnostic Interface J533
Ignition/Starter
Switch D
Navigation
CM J503/
Radio R
Instrument Cluster CM J285
Anti-Theft Engine Disable
(Immobilizer IV) CM J334
Parking Aid
CM J446
SAT Radio
Vehicle
Electrical
CM J519
Wiper Motor
CM J400
Rain/Light
Recognition
Sensor G397
Digital Sound
System
CM J525
Climatronic
CM J255
Memory Seat/
Steering
CM J136
Auxiliary Air
Heater
CM J604*
Drivetrain CAN-bus
Auxiliary Heater
CM J364*
Convenience
CAN-bus
Infotainment
CAN-bus
Driver's Door
CM J386
Front
Passenger
Door CM J387
Left Rear Door
CM J388
Right Rear Door
CM J389
LIN Bus
Comfort System
Central
CM J393
Alarm Horn H8
* May not be available on North American market vehicles
S873403_22
Instrument Cluster
CAN-bus
Diagnosis CAN-bus
CAN-bus
Wire
Communications
Line
S873403_31
5
Introduction
Drivetrain CAN-bus Control
Modules
Control Module Locations
Motronic Engine
Control Module (ECM)
J220, under plenum
chamber cover
The adjacent illustration shows the control
modules of the Drivetrain CAN-bus and
their locations.
The data transfer rate is 500 kbit/s. The data
is transferred through the CAN high wire
(orange/black) and CAN low wire
(orange/brown). To ensure reliable
communication without conflict or
interference, the CAN wires are twisted
together.
Transmission Control
Module (TCM) J217, on
left inside wheel housing
Steering Column Electronic
Systems Control Module J527,
beneath steering column switch
Data Bus On Board
Diagnostic Interface J533
beneath instrument cluster,
above accelerator pedal
6
Introduction
ABS Control Module J104
on the right side of the
bulkhead in the engine
compartment
Headlamp Range
Control Module J431
on the right side of the
glove compartment
(Bi-Xenon only)
S873403_08
Airbag Control Module J234,
beneath center console in
front of tunnel
7
Introduction
Convenience CAN-bus Control
Modules
Control Module Locations
The adjacent illustration shows the control
modules of the Convenience CAN-bus and
their locations.
Steering Column Electronic
Systems Control Module
J527, beneath steering
column switch
The data transfer rate is 100 kbit/s. The data
is transferred through the CAN high wire
(orange/green) and the CAN low wire
(orange/brown). To ensure reliable
communication without conflict or
interference, the CAN wires are twisted
together.
Vehicle Electrical System
Control Module J519 under
the instrument cluster, on
relay carrier
Data Bus On Board Diagnostic
Interface J533 beneath the
instrument cluster, above
accelerator pedal
Climatronic Control
Module J255 in
center console
8
Introduction
Comfort System Central Control
Module J393 on right side
beneath the instrument cluster,
behind glove compartment
Parking Aid
Control Module
J446 in rear right
side panel
S873403_09
Door Control Modules J386,
J387, J388, J389, installed
in respective doors
9
Introduction
Infotainment CAN-bus Control
Modules
Control Module Locations
The adjacent illustration shows the control
modules of the Infotainment CAN-bus and
their locations.
The Infotainment CAN-bus transfer rate is
100 kbit/s. The data is transferred through
the CAN-bus high wire (orange/purple) and
the CAN-bus low wire (orange/brown). To
ensure reliable communication without
conflict or interference, the CAN-bus wires
are twisted together.
Radio/Navigation Display
Control Module J503
(for 2006 model year) or
Radio R, in center console
CD Changer R41 in center
console, beneath front
armrest
10
Introduction
Operator Electronics and
Telephone Control Module J412
under right front seat, beneath
carpet covering on right sill panel
(delayed introduction)
S873403_10
11
Introduction
Instrument Cluster and Diagnosis
CAN-bus Control Modules
Instrument Cluster CAN-bus
Information is exchanged between the
Instrument Cluster Control Module J285
and the Data Bus On Board Diagnostic
Interface J533 via the instrument cluster
CAN-bus. These are the only control
modules in this data bus system.
Diagnosis CAN-bus
The transfer of data between the VAS
5051/5052 scan tool and Data Bus On
Board Diagnostic Interface J533 is through
the diagnosis CAN-bus.
Instrument Cluster Control
Module J285
Data Transfer Rate
The transfer rate for both CAN-buses is 500
kbit/s.
16-Pin Connector T16 on left
side, beneath instrument
cluster
12
Introduction
Data Bus On Board Diagnostic
Interface J533 beneath the
instrument cluster, above
accelerator pedal
S873403_11
13
LIN Bus
LIN Bus
The Local Interconnect Network (LIN) is a
sub-bus system that includes all associated
components within a specific area.
• The local sub-system is a cost effective
version of the CAN-bus
•
The specified component interface
allows easy exchange of the connectors
•
Bus connection in crash area
•
Bus connection in critical safety areas
Components in a LIN bus system include a
master control module and up to 16 slave
control modules. All communication is
initiated by the master control module.
Slave control modules cannot communicate
independently.
Several independent LIN buses with
different functions operate in the vehicle.
Information is exchanged between
individual bus systems by the master
control modules that are connected to the
CAN-bus.
LIN Bus System
H8
J400
G397
J527
J393
E221
J519
S873403_16
Key
E221
G397
H8
J393
14
Control Module in Steering Wheel
Rain/Light Recognition Sensor
Alarm Horn
Comfort System Central Control Module
J400
J519
J527
Wiper Motor Control Module
Vehicle Electrical System Control Module
Steering Column Electronic Systems Control
Module
LIN Bus
Master Control Module
Slave Control Module
The master control module, which is
connected to the CAN-bus, controls the LIN
bus system.
In the LIN bus system, individual control
modules, sensors or actuators can act as
slave control modules.
Primary Functions
• Conversion of local data bus information
to data format of CAN-bus
The electronics integrated in the control
modules evaluate the information, convert
it into digital information and send it, once
the request has been made, through the
LIN bus to the master control module.
•
Monitoring of data bus conversion and
rate of data transfer
•
Control of data transfer cycle
•
Transfer of diagnostic data from slave
control modules
Data commands are sent to the actuators
by the master control module through the
LIN bus.
After interrogating the master control
module, sensors send status information to
the master control module and perform a
target/reference comparison.
The comfort system central control module below shows the wiring of the LIN and
CAN-buses.
LIN Bus Wires
CAN-bus Wires
S319_068
15
Power Supply
Electrical Box
Fuses for components in the engine
compartment and the vehicle’s interior are
located in the electrical box.
The distance between the electrical box
and the battery is approximately 1.6 ft.
(500mm). This allows the battery to
function as a high frequency filter between
components that are mounted directly on
the electrical box.
Location
The electrical and back-up fuse boxes are
located in a housing within the engine
compartment.
The increased number of fuses allows the
rating of the fuses to be set to the
individual components.
S319_031
16
Power Supply
Electrical Box
In addition to the fuses, the following relays
are also located in the electrical box:
• Voltage Supply Terminal 15 (B+) Relay
J329
•
Power Supply (Terminal 30, B+) Relay
J317
•
Power Supply Relay (Terminal 50) J682
•
Fuel Pump (FP) Relay J17 (except FSI)
Back-up Fuse Box
The back-up fuse box contains fuses for:
• Alternator
•
Electro-mechanical power steering
•
Radiator fan
•
Power supply from terminal X
•
Auxiliary heater
•
Terminal 30
S319_009
S319_010
17
Power Supply
Relay Carrier
Location
The relay carrier and the supply control
module are located on the driverside under
the instrument cluster.
Relay Carrier
Additional relays may be included on the
relay carrier depending on equipment
options.
On vehicles with power seat adjustment,
the automatic safety device (thermal safety)
is installed on the relay carrier.
S319_012
Supply Control Module Relay Carrier
The following relays are located on the
supply control module relay carrier:
• Power supply relay terminal 30G
•
Voltage Supply Terminal 15 (B+) Relay
J329
•
Power Supply Relay 1 (Terminal 75) J680
•
Rear Window Defogger Relay J9
•
Horn Relay J413
•
Dual Washer Pump Relay 1 J729
•
Dual Washer Pump Relay 2 J730
18
S319_065
Power Supply
Fuse Box
Location
The fuse box is located on the driverside of
the instrument cluster behind a cover.
Fuses
The fuse box contains fuses for the
electrical components of the vehicle.
Please refer to current service
repair information for fuse
locations.
S319_013
19
Power Supply
Data Bus On Board Diagnostic
Interface J533
Due to the complexity of vehicle functions,
large amounts of data must be exchanged.
To ensure optimal data exchange, several
data bus systems are required.
Location
J533 is located beneath the instrument
cluster, above the accelerator pedal.
The interface function that was previously
part of the instrument cluster or supply
control module is now performed by J533.
It forms the interface for data bus systems
that are independent of each other and
allows information to be exchanged without
conflict or interference.
S319_014
Data Bus On Board Diagnostic Interface J533
Diagnostic CAN-bus
Instrument Cluster
CAN-bus
Diagnostic
Connection
Drivetrain
CAN-bus
Convenience
CAN-bus
Instrument Cluster
Infotainment
CAN-bus
S307_015
20
Power Supply
Master Functions
Terminal 15 Run-On
J533 manages the master functions of the
terminal 15 run-on for the Drivetrain
CAN-bus along with the sleep and wake-up
modes for the data bus systems.
Some control modules on the CAN-bus
must exchange information when terminal
15 is off. When necessary, a message is
sent to the CAN-bus to enable the run-on
mode. The control modules involved make
a connection internally from terminal 30 to
terminal 15, allowing them to communicate.
The Power Steering Control Module J500,
for example, can communicate with the
other control modules.
The run-on mode can last between ten
seconds and fifteen minutes. The run-on
length of time depends on the data being
transferred.
The run-on period ends when J533 sends
the sleep command.
Terminal 15 Run-On Control Modules
J533
Drivetrain CAN-bus
Term. 30
J271
J500
J220
G85
J587
Internally Switched Terminal 15
Key
J104
J217
J271
G85
J104
J217
J220
Steering Angle Sensor
ABS Control Module
Transmission Control Module (TCM)
Motronic Engine Control Module (ECM)
J500
J533
J587
S307_047
Motronic Engine Control Module (ECM)
Power Supply Relay
Power Steering Control Module
Data Bus On Board Diagnostic Interface
Selector Lever Sensor System Control Module
21
Power Supply
Data Bus Sleep and Wake-Up Modes
When all of the control modules on the
convenience and Infotainment CAN-bus
indicate that they are ready for stand-by, a
control module gives the signal to 'sleep'.
The voltage level of the low signal is
12 volts and 0 volts for the high signal.
A control module also gives the wake-up
signal when the data bus requires
activation, such as when the doors are
unlocked.
Sleep Mode
22
Wake-Up Signal
The data bus on board diagnostic interface
monitors the sleep function.
If the Drivetrain CAN-bus does not go into
sleep mode, the Convenience and
Infotainment CAN-buses will not go into
sleep mode.
If the Convenience CAN-bus does not go
into sleep mode, the Infotainment CAN-bus
will also not go into sleep mode.
Wake-Up S307_048
Mode
Power Supply
Transport Mode
During transport to dealerships, power
consumption is reduced to protect the
battery.
Activating the transport mode isolates the
following systems and components:
• Radio
•
Radio remote control
•
LED indicator in door
•
30 second interior light switch-off delay
The transport mode is only available during
the vehicle’s first 93 miles (150km). After
reaching this mileage, the J533
automatically switches transport mode OFF.
Transport mode cannot be turned ON again
after 93 miles (150km) is reached.
The transport mode is switched ON and
OFF with the VAS 5051 scan tool through
the vehicle’s self-diagnosis.
“Tra” shows in the odometer display of the
instrument cluster when transport mode is
active.
S319_030
S319_029
23
Power Supply
Vehicle Electrical System Control
Module J519
Location
The Vehicle Electrical System Control
Module J519 is located under the
instrument cluster. It is attached to the relay
carrier.
S319_065
Vehicle Electrical System
Control Module J519
S307_017
Relay Carrier
24
Power Supply
Primary Functions
Secondary Functions
The vehicle electrical system control
module actuates and controls the following
functions:
• Exterior light control and monitoring
– In the event of bulb failure, the
relevant warning lamp will light or a
text message will display in the
instrument cluster
The vehicle electrical system control
module also controls the following
functions:
• Interior light control
– Terminal 30G determines what
voltage is supplied to the interior
lights.
•
Convenience lighting:
– Coming Home
– Leaving Home
– Instrument cluster backlight level
•
Console lighting
•
Windshield wipers
– Directs CAN-bus signals from the
vehicle electrical system control
module to the wiper motor control
module
•
Windshield washer pump
•
Turn signal control
•
Electric load management shut-off
below 11.8 volts
•
Heated rear window
– Via the heated rear window button
•
Terminal activation
– Terminal 75x is activated via an ‘X’
contact relief relay.
– Terminal 15 is activated via voltage
supply terminal 15 (B+) relay in the
electrical box.
– Terminal 50 is activated via power
supply relay (terminal 50) in the
electrical box.
•
Fuel pump readiness
– The electric fuel pump is supplied
with power when the driver's door is
opened. After the engine has
started, power is supplied from the
Motronic engine control module.
25
Power Supply
Electrical Load Management
Operating Mode 1
The electrical load management makes
sure that there is enough reserve electrical
power in the battery to start the engine.
Terminal 15 ON and alternator active
If necessary, convenience system electrical
devices are deactivated without
compromising safety requirements.
At a battery voltage below 12.7 volts, the
vehicle electrical system control module
commands an increase in the engine idle
speed.
The vehicle electrical system control
module monitors the engine speed, the
battery voltage and the alternator load
through the DF signal (dynamo field).
Management Activities
At a battery voltage below 12.2 volts, the
following electrical devices are turned OFF:
• Heated seats
From this information and from information
about which devices are on for short
periods, the vehicle electrical system
control module evaluates the power supply
load state.
•
Heated windshield
•
Heated exterior mirrors
•
Steering wheel heating
•
Footwell lighting
Based on this evaluation, the vehicle
electrical system control module can
increase engine speed via the engine
control module or deactivate convenience
devices.
•
Interior door handle lights
•
Reduction and deactivation of
Climatronic
•
Warning and deactivation of
Infotainment
Three load management operating modes
are possible.
26
Power Supply
Operating Mode 2
Operating Mode 3
Terminal 15 ON and alternator inactive
Terminal 15 OFF and alternator inactive
Management Activity
Management Activity
At a battery voltage below 12.2 volts, the
following electrical devices are turned OFF:
• Reduction and deactivation of air
conditioning
At a battery voltage below 11.8 volts, the
following electrical devices are turned OFF:
• Interior lights
•
Footwell lighting
•
Footwell lighting
•
Inner door handle lights
•
Interior door handle lights
•
Entry/exit lights
•
Entry/exit lights
•
Leaving home
•
Leaving home
•
Infotainment, e.g. radio
•
Warning and deactivation of
Infotainment
The primary differences of component or
system deactivation in the various operating
modes is the order in which they are
deactivated.
Operating mode 3 deactivates several
electrical devices at once.
Deactivation is cancelled when the
conditions for deactivation are no longer
present.
When deactivation occurs,
notification appears in the
instrument cluster display. A fault
entry is also logged in the
electrical system control module
fault memory.
27
Power Supply
Exterior Light Control
Headlights
The twin headlights with low and high
beam reflectors are equipped with H7
halogen bulbs as standard equipment.
To improve visibility for other drivers, the
turn signals are located beneath the
headlights, providing a well-balanced
distribution of light from the turn signal.
On some vehicles, a combination of the
Bi-Xenon module, a high beam reflector,
and H7 bulbs is an option.
Bi-Xenon equipped vehicles are also
enhanced with a washer system and
dynamic headlight range control.
S873403_28
Turn Signal
High Beam
Light
Headlight
Low Beam
Headlight
Bulb Replacement with
One-Touch-System
The One-Touch-System allows both the
cover and H7 bulbs to be removed with a
twist motion. A guide assists with
installation.
S319_034
28
Power Supply
Rear Lights
Brake Light
Available for the first time on the new Jetta
are the split rear lights with round
elements.
The rear light unit, integrated into the side
panel, provides the tail, brake, and turn
signal light functions.
An additional reverse light is located in the
trunk deck.
An auxiliary brake light is located in the rear
window. Turn signals in the exterior mirrors
complement the front and rear turn signals.
They provide additional visual information to
other drivers.
Light Switch
The rotary light switch is a semi-conductor
module that sends switch position
information to the vehicle electrical system
control module.
Taillight
Taillight
Turn Signal Light
S873403_29
Reverse Light
The vehicle electrical system control
module controls all exterior light functions.
Advantages
•
Elimination of voltage spikes in the
rotary light switch increases bulb life
Special Functions
•
All bulbs are monitored for failure
•
The bulb monitoring system information
is displayed in the instrument cluster
29
Power Supply
Convenience Lighting
Coming Home
When occupants exit the vehicle and close
the doors, including the trunk, the vehicle
surround lighting is activated for a short
time.
If the rotary light switch is in the “low beam
position,” the lights are switched OFF
completely once the lighting period has
elapsed.
Leaving Home
If the rotary light switch is in the “side light
position,” the side light bulbs remain ON for
an additional time after the surround
lighting has turned OFF.
After the vehicle has been unlocked using
the remote control key, the surround
lighting is turned ON for a short time.
After the convenience lighting
has turned OFF or been
interrupted, the Coming Home
function cannot be reactivated
until the ignition is switched ON.
30
Power Supply
The following lights are switched ON by the
Coming Home and Leaving Home
functions:
• Front side lights
•
Low beam headlights
•
Taillights
•
License plate light
Activation or deactivation of the
coming and leaving home
functions and the lighting periods
are set in the instrument cluster
by accessing the “Light & Vision”
MFI personalization menu.
S873403_28
High Beam
Headlight Running
Low Beam
Headlight
Light
Side
Light
S873403_29
Taillight
31
Power Supply
Windshield Wiper System
Wiper Operation
The wiper system consists of a single
motor with mechanical connections to the
wiper arms.
During intermittent operation, wiper
movement is speed dependent and varies
between 2 and 24 seconds.
The selected position of the Windshield
Wiper Switch E is sent to the Steering
Column Electronic Systems Control Module
J527 and relayed through the Convenience
CAN-bus to the Vehicle Electrical System
Control Module J519. The vehicle electrical
system control module sends information
about the selected wiper position through
the LIN bus to the Wiper Motor Control
Module J400, which controls wiper action.
The wiper control system can detect an
obstruction and react according to the
degree of resistance. The wipers will try to
move the obstacle out of the way. If it still
has not been removed after the fifth
attempt, the wipers will stay in that
position. Activation of the wipers after the
obstacle has been removed is
accomplished by turning the switch ON.
On vehicles with rain and light sensors, the
wiper frequency is calculated in the rain
sensor mode and sent to the wiper motor
control module.
Instead of rotating 360°, the
wiper assembly reverses every
150°. This allows a much smaller
space for wiper linkage.
S319_069
32
Power Supply
Overview of Windshield Wiper System
J104
G397
J400
F266
D
E
J519
J527
J533
S319_016
Key
D
E
F266
G397
J104
Ignition/Starter Switch
Windshield Wiper Switch
Front Hood Switch
Rain/Light Recognition Sensor
ABS Control Module
J400
J519
J527
J533
Wiper Motor Control Module
Vehicle Electrical System Control Module
Steering Column Electronic Systems Control
Module
Data Bus On Board Diagnostic Interface
33
Power Supply
Headlight Washer System
Service/Winter Position
Moving the wiper switch to the “tip
wiping” position (down) within 10 seconds
of switching OFF the ignition causes the
wipers to move to the end position of wiper
travel known as the service/winter position.
The headlight washer system (with optional
Bi-Xenon headlamps) is activated by the
vehicle electrical system control module as
part of the “wash/wipe” function.
Activation Conditions
• Ignition ON
When the wipers are in the service/winter
position, the wiper blades can be easily
replaced or the wiper arms can be lifted to
prevent the rubber from freezing to the
windshield.
•
Side, low beam or assistant driving
lights ON
•
Steering column switch in “wash/wipe”
position
The wipers will revert to the rest position
when the windshield wiper switch is turned
OFF and ON with the ignition ON or if the
vehicle reaches a speed of 1.2 mph
(two km/h).
Headlight Wash Cycle
• Runs every fourth time the “wash/wipe”
function is activated by the control
module
When the vehicle is parked and
the hood is open, the wipers will
not operate.
S319_015
34
Power Supply
Windshield Washer Quick
Disconnect/Lock System
Engaged
Features
• Easy removal/assembly
•
Improved longevity
•
Improved anti-crimp and freeze
protection
•
Convoluted-type tubes
S319_049
The quick disconnect/lock system for the
windshield washer system is a new feature
of the Jetta.
With this system, the windshield washer
hoses are convoluted tubes that minimize
the chance of crimping.
Clip
Washer Jet
Disengaged
The tube connections to the windshield
washer pump and washer jets are secured
by clips.
To disassemble, pull the clip outward by
hand to allow hose removal.
To install, press the hose onto the opening
until the clip engages automatically.
S319_066
Clip
Washer Jet
35
Power Supply
Instrument Cluster Control Module
J285
Diagnosis
J285 receives information through the Data
Bus On Board Diagnostic Interface J533
and the instrument cluster CAN-bus.
Diagnosis of J285 performed using the
diagnosis tester VAS 5051/5052 through
the CAN-bus.
Additional external sensor signals that are
sent to the instrument cluster by separate
wiring:
• Oil Pressure Switch F1
J285 is also capable of self-monitoring. If a
fault occurs, the letters “def” will appear in
the instrument cluster display.
•
Brake Fluid Level Warning Switch F34
•
Outside Air Temperature Sensor G17
•
Engine Coolant Level (ECL) Sensor G32
•
Windshield Washer Fluid Level Sensor
G33
•
Left Front Brake Pad Wear Sensor G34
•
Fuel Pump (FP) Control Module J538
36
Power Supply
Anti-Theft Immobilizer Control
Module J362
Immobilizer IV
The Anti-Theft Immobilizer Control Module
J362 is integrated into the instrument
cluster control module. With the ignition
switched ON, it enables or disables specific
vehicle functions.
The only way to communicate with the
Immobilizer is by using Guided Fault Finding
in the VAS 5051 scan tool.
Active Immobilizer
If the Immobilizer is active, it emits an
audible sound and a warning light
illuminates in the tachometer display.
Adaption channels and stored faults are
handled separately.
The Immobilizer address is word 25 for
diagnosis.
Immobilizer Light
S319_051
Diagnosis of the Immobilizer
control module is performed via
the “Guided Fault Finding”
function.
37
Power Supply
Warning Lights in the Instrument
Cluster
S319_017
Symbol
38
Warning Light
Indicator
Warning Message or Description
Airbag
Light
Airbag fault
Airbag belt tensioner deactivated
Anti-lock braking system (ABS)
Light
ABS
Brake pad wear indicator
MFI Display
Check brake lining
1 x audible warning
Low brake fluid level
Flashing
Stop-Brake fluid
Operating instructions
3 x audible warnings
Preglow period (diesel engines only)
Light
Electronic Power Control (EPC)
Light
Oil pressure warning
MFI Display
Stop-Oil pressure turn engine OFF
See operating instruction
3 x audible warnings
Electronic power steering (EPS)
Light
Low priority fault yellow
High priority fault red
Electronic brake pressure
distribution (EBD)
Flashing
3 x audible warnings
Parking brake system
Light
Handbrake applied
1 x audible warning
Electronic stabilization program (ESP)
Light
Power Supply
Symbol
Warning Light
Indicator
Warning Message or Description
Left turn signal
Light
Audible warning
Right turn signal
Light
Audible warning
High beam headlights
Light
Cruise control system (CCS)
Light
Bulb blown/driving light defective
Light
Example–Front right low beam
headlight defective
Trunk/door open
MFI Display
Trunk open
1 x audible warning
Fuel reserve low
MFI Display
Replenish fuel
1 x audible warning
Coolant level low/coolant
temperature high
MFI Display
Stop–check coolant
Operating instructions
3 x audible warnings
Alternator low voltage output
Light
Engine check
Onboard diagnosis (OBD)
Light
Engine fault service
Exhaust emissions service
Hood open
Light
Door warning, hood, 1 x audible warning
vehicle moving less than 3.7 mph (6 km/h)
Rear fog light
Light
Oil level low
Light
Check oil level
Oil sensor service
1 x audible warning
Tire pressure low
Light
1 x audible warning
Shift lock
Light
Seat belt
Light
Please use seatbelt
Belt warning alarm
Washer fluid low
MFI Display
Add washer fluid
1 x audible warning
Anti-theft Immobilizer
Flashing
Immobilizer active
1 x audible warning
39
Power Supply
Comfort System Central Control
Module J393
Location
The Comfort System Central Control
Module J393 is located beneath the
instrument cluster, on the passenger side
behind the glove compartment.
Functions
•
Control of central locking
•
Activation of rear door locks
•
Activation of fuel tank door release
•
Activation of trunk release
•
Activation of anti-theft engine disable or
Immobilizer alarm system via LIN bus
J393 is the master control module in the
LIN bus. This control module initiates data
transfer for the anti-theft engine disable and
Immobilizer alarm systems. Included in the
anti-theft engine disable and Immobilizer
alarm systems are interior monitoring
sensors, smart alarms and the vehicle
inclination sensor.
Depending on the model and options,
some electrical components and
connectors may not be used in the comfort
system central control module.
In earlier models, the mirrors were
controlled via the comfort system central
control module. The door control modules
now control all systems in the door area,
including the mirrors. This reduces electrical
wiring.
S319_064
40
Convenience and Safety Systems
Personalization
The user-based settings for various
functions in the Convenience and
Infotainment CAN-bus systems are
selected by pressing the controls on the
right windshield wiper stack while
observing the MFI Menu options in the
instrument cluster display. Selections are
stored in the control module, which
controls all functions.
Data transfers between the instrument
cluster control module and associated
control modules is managed by the
CAN-bus.
J285
J533
J527
J519
J393
S319_067
Key
J285
J393
J519
J527
J533
Instrument Cluster Control Module
Comfort System Central Control Module
Vehicle Electrical System Control Module
Steering Column Electronic Systems Control Module
Data Bus On Board Diagnostic Interface
41
Convenience and Safety Systems
Accessing Programming Menus
The following procedure allows access to
the new Jetta’s convenience options using
the multi-function indicator (MFI) switch
lever.
For detailed information on
programming, please refer to the
operating instructions in the
vehicle owner’s manual.
To access the convenience menu:
1. Press and hold the Up/Down Toggle
Switch in the “UP” or “DOWN” position
for two seconds.
2. Use the Up/Down Toggle Switch to
highlight “Setup” and then press the
OK/Reset switch to select it.
3. Toggle to “Convenience” and then press
the OK/reset switch to select it. From
there, adjust the convenience settings.
S873403_24
Up/Down
Toggle Switch
OK/Reset Switch
Multi-Function
Indicator (MFI)
Switch Lever
Select
Select
S873403_25
42
S873403_26
Convenience and Safety Systems
Radios
RCD 300 Radio System (Base Radio)
Radio RCD 500 (Premium 7)
The RCD 300 radio is a standard radio
system. It has the following features:
• Two or four loudspeaker channels (each
20 W)
The top radio for the new Jetta is the RCD
500 with the following functions:
• Four speaker channels (20 W each)
•
RDS FM/AM Radio (AM without LW)
•
RDS FM/AM
•
•
Display of stored stations and RDS
names
Display of stored stations with RDS
names
•
MP3 compatible
•
MP3 compatible
•
FM 2 diversity tuner
•
FM-2 tuner
•
•
Control by multi-function steering wheel
(MFS) and multi-function display (MFD)
Operation through multi-function
steering wheel and multi-function
display
•
Integrated single CD drive
•
Integrated 6 disc CD changer
•
Controls for external 6 disc CD changer
•
Controls for external 6 disc CD changer
•
Telephone control (hands-free operation)
•
GALA
•
GALA
•
Model-specific sound adjustment
•
Self-diagnosis including speaker
diagnosis
•
SAT Optional Satellite Radio
•
Self-diagnosis including speaker
diagnosis
•
Transport mode
•
Optional external sound amplifier
•
Transport Mode
S873403_30
S873403_27
43
Convenience and Safety Systems
MFD 2 Radio Navigation System
(Delayed Introduction)
A radio system with an integrated
navigation system will be available for the
2006 model year. Features include:
• Multi-color display (MCD)
•
DVD-based system
•
Four speaker channels (20 W each)
•
RDS FM/AM Radio (AM without LW)
•
Display of stored stations with RDS
names
•
External diversity tuner
•
Operation via multi-function steering
wheel and multi-function display
•
Controls for external 6 disc CD changer
•
GALA
•
Self-diagnosis including speaker
diagnosis
44
S873403_32
Convenience and Safety Systems
Antennas
Jettas are equipped with different antenna
systems depending on the options
selected. Rear window antennas are not
serviceable.
+
-
AM Circuit
Radio RCD 300/RCD 500
The RCD 300 and RCD 500 radios are
equipped with an internal diversity tuner
(automatic selection between antennas).
An external diversity tuner is not required.
Two rear window antennas are connected
to the radio. The radio automatically selects
the antenna with the strongest signal.
FM Circuit (+)
FM Circuit (-)
Antenna
Amplifier
(Impedance
Transformer)
S319_022
45
Convenience and Safety Systems
+
MFD 2 Radio Navigation System
The MFD 2 radio navigation system does
not use an internal diversity tuner. The MFD
2 uses an external tuner and two rear
window antennas.
The MFD 2 radio navigation system uses a
shark-fin type roof antenna.
-
AM Circuit
FM Circuit (+)
Antenna
Amplifier
(Impedance
Transformer)
Control
Line (Coax)
FM Circuit (-)
External
Diversity Tuner
Antenna
Signal
(Coax)
S319_023
S873403_023
46
Convenience and Safety Systems
Multi-Function Steering Wheel
System Overview
The multi-function steering wheel
communicates with the steering column
switch module through a LIN bus.
Communication from the steering column
electronic systems control module to the
on board diagnostic interface is through the
CAN-bus, which passes these signals to
the desired control modules.
J527
E221
J533
J285
The multi-function steering wheel becomes
active when the ignition is turned ON.
J503
R
J412
15
30
S319_019
Key
E221
J285
J412
J503
J527
J533
R
R66
Control Module in Steering Wheel
Instrument Cluster Control Module
Operating Electronics and Telephone Control
Module
Radio/Navigation Display Control Module
Steering Column Electronic Systems Control
Module
Data Bus On Board Diagnostic Interface
Radio
Telephone/Navigation System (GPS)/
Auxiliary Heater Antenna
47
Convenience and Safety Systems
Multi-Function Buttons
Button illumination is controlled by terminal
58d.
Only one code is used to communicate
information from the buttons, through the
steering column electronic systems control
module, to the CAN-bus. This means that
buttons can only function one at a time.
S319_025
Button Symbol
Description
Switch to basic telephone menu,
various sub functions, such as
caller list, make connection
If a telephone is not installed, the
telephone buttons are non-functional.
If after several minutes the system detects
a sticking button it will disable the function.
All other buttons will remain functional.
Accept call, make call
Mute selection of audio sources
End call
Switch (mode) between FM/AM
audio sources, CD-changer and
CD (radio)
Next track/start station search
Previous track/start station
search
48
+
Volume up
–
Volume down
Convenience and Safety Systems
Headliner Printed Circuits
An increase in headroom has been
achieved by using printed circuits. Routing
of wire is eliminated because the printed
circuit wiring is attached to the headliner.
Additional wire clips in the roof area are no
longer required.
Description
The printed circuit wiring connects the rear
interior light, the sun visor switch and the
vanity mirror lighting to the vehicle
electrical system control module.
Sun Visor Switch
Connection
Vanity Mirror
Light Connection
Central Coupling
Point Connection
Front Interior
Light
The central coupling point connection is
located on the front cross member, above
the front interior light.
Headliner printed circuits are not
serviceable. The printed circuit
must be replaced as a complete
unit. Always refer to the latest
service repair information.
Rear Interior Light
S319_073
49
Convenience and Safety Systems
Tamper-Proof Guard
A tamper-proof fastener protects the new
Jetta Motronic engine control module from
tampering and unauthorized data access.
This tamper-proof fastener secures a
protective cover over the main harness
connector.
S319_055
50
Notes
51
Knowledge Assessment
An on-line Knowledge Assessment (exam) is available for this Self-Study Program.
The Knowledge Assessment may or may not be required for Certification.
You can find this Knowledge Assessment at:
www.vwwebsource.com
From the vwwebsource.com Homepage:
–
Click on the Certification tab
–
Type the course number in the Search box
–
Click “Go!” and wait until the screen refreshes
–
Click “Start” to begin the Assessment
For Assistance, please call:
Certification Program Headquarters
1 – 877 – CU4 – CERT
(1 – 877 – 284 – 2378)
(8:00 a.m. to 8:00 p.m. EST)
Or, E-Mail:
[email protected]
52
Volkswagen of America, Inc.
3800 Hamlin Road
Auburn Hills, MI 48326
Printed in U.S.A.
December, 2004